รบกวนดู Code และให้คำแนะนำทีค่ะพอดีมือใหม่หัดเขียน OOP นะคะ

<?php
/**
* 
*/
class Promote {
	
	var $db;
	var $data;
	var $lang;

function __construct($db) {
	
	$this->db = $db;
	$this->lang = empty($_REQUEST['lang']) ? "th" : $_REQUEST['lang'];
	$this->_load();
}

function _load() {

	$arrResult = array();
	$i=0;
	$sqlCmd = "SELECT 
				name_th,
				name_en,
				url 
			FROM Promote 
			 WHERE (start_date <='".date("Y-m-d")."' AND 
					stop_date >='".date("Y-m-d")."' AND 
					stop_date != '0000-00-00') 
			ORDER BY promote_id";
						 
	$rs = new clsMySqlRecordSet("", $this->db);
	$rs->setSqlCmd($sqlCmd);
	$rs->load();
	$arrData = $rs->getData();
	
	if($arrData) {
		foreach($arrData as $data){
			$arrResult[$i]["name_th"] = $data["name_th"];
			$arrResult[$i]["name_en"] = $data["name_en"];
			$arrResult[$i]["url"] = $data["url"];
		$i++;
		}
	}

	if($_REQUEST["debug"]) {
		echo $sqlCmd . '<pre>'; print_r($arrResult); echo '</pre><hr />';
	}

	return $arrResult;
}

function get($key) {
	
	return $this->data[$key];
}

function getData($arrPromoteData) {

	$i=0;
	if($arrPromoteData) {
		foreach ($arrPromoteData as $data) {
			$getName= new Content($data["promote_id"], $db);	
			$name	= $getName->get("name_".$this->lang);
			$url	= จะต้องเรียกยังไงค่ะ
		
			$i++;
		}
	}
	
	return $arrFreeContent;
}

?>